Air-heating furnace



{No Model.)

- J. WEIK.

AIR HEATING FURNACE.

Patented Feb. 8, 1887.

' IQN'VENTOR Tom v Wvyk WITNESSES: f

.dTTORNEYS UNITE STATES {PATENT OFFICE.

JOHN WEIK, OF PHILADELPHIA, PENNSYLVANIA.

AIR-HEATING FURNACE.

SPECIFICATION forming part of Letters Patent No. 357,513, dated February8, 1887.

Application filed June 1'7, 1886. Serial No. 205,435. (No model.)

To (tZZ whom it may concern: I

Be it known that I, JOHN \VEIK, a citizen of the United States, residingat Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented new and useful Improvements in Air HeatingFurnaces, of which the following is a Specification.

This invention relates to heating-furnaces; and it consists in thecombinatiomwit-h a sectional furnace-barrel and a fire-grate locatedtherein, of a series of alternating perforated distributing plates anddeflecting plates arranged in said barrel above the fire-grate andsecured between the sections of the barrel.

The'invention is illustrated by the accompanying drawings, in whichFigure 1 is a central vertical section of my improved heatingfurnace.Fig. 2 is a transversesection of the same in the plane 03%, Fig.

1. Fig. 3 is a similar section in the plane y 1 Fig. 1.. i I

Similar letters indicate corresponding parts.

In the drawings, the letter A designates the barrel of the furnace,which is built up of a number of annular sections that are composed ofclay or other refractory material, and are tongued and grooved together.The top sections are formed conical to reduce them to the diameter ofthe flue A at the top of the furnace, through which the gases are led tothe chimney. A damper (which is not shown in the drawings) is located inthis flue, as usual, to control the draft.

B is the fire-grate, which is situated near the bottom of the barrel,and is provided with a projecting arm, b, so that it can be shaken.

G is the ash-pit, and B and O are the respective doors of the fire-boxand ash-pit.

Above the fire-grate is located a series of alternating perforatedplates, E, and deflecting-plates F, which are intended alternately todistribute and to contract thegases resulting from the combustion offuel on the grate. These plates E and F are all secured between thesections a of the barrel, and the perforated plates, which distributethe gases, completely fill out the cross-section of the barrel, so thatthe gases must'necessarily pass through the perforations, whereby theyare finely divided and evenly distributed in the space between theconsecutive plates. The deflecting-plates F are smaller in diameter thanthe interior of the barrel, and are provided with projecting ears f,Fig. 2, which are clamped between the sections of the barrel. Annularspaces are thus left between the walls of the barrel and the peripheryof the deflecting-plates, through which spaces or contractions the gasesare drawn by the draft of the chimney and are thrown against the wallsof the barrel. The number of these alternating perforated and deflectingplates naturally varies with the height of the furnaces.

The furnace is encompassed on all sides by a foraminous screen, G,whichcloses at its bottom against the base of the same, and is closed at itstop by a foraminous cover, so that the external air can freely circulatethrough the walls of the screen, and by coming into contact with thefurnace-walls is strongly heated,and a continual circulation of airtakes place.

By alternately distributing and contracting of the furnacegases in thebarrel, and by deflecting the same against its interior walls, asdescribed, all the heat of the gases is utilized in heating the walls,so that a very economical heater is produced thereby.

Vhat I claim as new, and desire to secure by Letters Patent, is-

'lhecombination, with the sectional barrel A and a fire-grate located insaid barrel, of a series of alternating perforated distributingplates,E, and deflecting-plates F, arranged in said barrel above the fire-grateand secured between the sections, substantially as shown and described.

In testimony whereof I have hereunto set my hand and seal in thepresence of two subscribing witnesses.

JOHN warn. [n s.]

Vitnesses:

W. HAUFF, E. F. KASTENHUBER.

